@misc{_Maciej_[1970],
 copyright={Public Domain},
 howpublished={online},
 year={[1970]},
 title={Maciej Mroczkowski, Henryk Sandner, Andrzej Szujecki},
 type={Image},
 URL={http://rcin.org.pl/Content/125176/PDF/WA058_109768_Mroczkowski_PTE.pdf},
 keywords={Mroczkowski, Benedykt Maciej (1927-2007), Sandner, Henryk (1915-1994), Szujecki, Andrzej (1929-2017), Polish Entomological Society, Governing Board PES, zoologists, entomologists, biologists - Poland - biography},
}